TWI704735B - Overlap coupling pole seat in the chassis - Google Patents

Abstract

The invention provides a lap coupling pole base in a casing, which can be installed in an electrical casing. The lap coupling pole base at least includes an upper nut, a supporting insulating column, a lower nut and a spring. The upper nut has a through hole, the supporting insulating column is arranged in the through hole of the upper nut to slide, the through hole forms a square hole, and the supporting insulating column is formed with a square column slidably received in the square hole. A groove is provided on the top of the supporting insulating column. The lower nut is provided with a lower nut accommodating chamber, a spring is provided in the lower nut accommodating chamber, and the spring pushes the supporting insulating column toward the upper nut so that the groove is constantly applied to a first coupling interface of an external device The elastic pressure can compensate for the thermal expansion and contraction of the object when the high and low temperature changes, so that the coupling interface maintains a constant contact pressure.

Description

Overlap coupling pole block in the case

The invention relates to a coupling pole holder, in particular to a lap coupling pole holder in a casing.

In the process of erection or maintenance of traditional electrical equipment, when the external wires need to be electrically coupled and overlapped with the electrodes in the device casing, screws are usually used to directly press the inner and outer electrodes. However, this direct compression method is easy to cause temperature The change caused the metal to expand and contract with heat, resulting in insufficient screw pressure, which gradually caused poor contact at the overlap and burned the device.

Generally, there is a greater temperature difference between outdoors than indoors. In some areas, the temperature can reach more than 30 degrees in summer and drop to tens of degrees below zero in winter. The electrical connection points of outdoor equipment in these areas are greatly increased. The influence of cold shrinkage can easily cause poor contact. For example, for electrical equipment with an aluminum alloy casing installed outdoors, a lap interface with stable power supply is needed to avoid poor contact of the lap contact surface due to temperature changes and burn the equipment.

In view of this, it is necessary to provide an improved electrode overlap coupling pole seat to overcome the problems caused by the conventional technology.

One purpose of the present invention is to provide a lap coupling pole seat in a casing, which can apply elastic pressure to the coupling interface in the casing.

Another object of the present invention is to provide an overlap coupling pole seat in a casing, which can compensate for the thermal expansion and contraction of the object when the high and low temperature changes, so that the coupling interface maintains a constant contact pressure.

To achieve the above objective, the overlap coupling pole base in the casing of the present invention can be installed in an electrical casing. The overlap coupling pole base includes at least an upper nut, a supporting insulating column, a lower nut and a spring. The upper nut has a through hole, the supporting insulating column is arranged in the through hole of the upper nut to slide, and the top of the supporting insulating column is provided with a groove. The lower nut is provided with a lower nut accommodating chamber, a spring is provided in the lower nut accommodating chamber, and the spring pushes the supporting insulating column toward the upper nut so that the groove is constantly applied to a first coupling interface of an external device Elastic pressure.

In an embodiment of the present invention, the through hole of the upper nut forms a square hole, and the supporting insulating column is formed with a square column slidably received in the square hole, thereby enabling the supporting insulating column to be slid The nut slides linearly without rotating randomly.

In an embodiment of the present invention, a circular hole is formed above the square hole, and the supporting and insulating pillar forms a cylinder above the square pillar, and the cylinder is slidably received in the circular hole. The matching of the supporting insulating column has better sliding properties in the upper nut.

In an embodiment of the present invention, an insulating column accommodating chamber is recessed at the bottom of the supporting insulating column, and the top of the spring extends into the insulating column accommodating chamber, so that the spring can obtain a better positioning effect.

In an embodiment of the present invention, a notch is provided on the top of the upper nut, and the direction of the notch is the same as that of the groove of the supporting insulating column. By setting the notch, the upper nut can be rotated to the correct angle. The groove supporting the insulating column is accurately aligned with the direction of the first coupling interface.

In an embodiment of the present invention, a pressure gap rubber ring is provided between the upper nut and the lower nut, and the contact between the upper nut and the lower nut can be reduced by the arrangement of the pressure gap rubber ring pressure.

In an embodiment of the present invention, the outer diameter of the lower nut is provided with a waterproof rubber ring, which can prevent moisture and water from entering the inside of the casing.

In an embodiment of the present invention, a temperature compensation liquid package is arranged between the bottom of the lower nut chamber and the spring, which can absorb the deformation caused by the temperature to maintain the original pressure.

In an embodiment of the present invention, the thermal expansion coefficient of the temperature-compensated liquid package is a negative value. The temperature-compensated liquid package will expand at low temperatures to compensate for the shrinkage distance of other materials, and reduce the volume when the temperature rises. Maintain the original pressure of the device.

In an embodiment of the present invention, a flat washer is arranged between the spring and the temperature compensation liquid package, and the flat washer is placed at the bottom of the spring so that the spring has good support to support the insulating column.

The embodiments are only used to illustrate the possible implementation of the present invention, but they are not intended to limit the scope of the present invention. In order to make the objectives, features, and advantages of the present invention obvious and easy to understand, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

Please refer to FIG. 1. FIG. 1 shows an exploded perspective view of the first embodiment of the overlap coupling pole holder in the casing of the present invention. The overlap coupling pole base in the casing of the present invention can be installed in an electrical casing (20), and the casing (20) is provided with an external device communicating hole (21), an internal device communicating hole (22), and a pole The socket connection hole (23), the external device communication hole (21) and the internal device communication hole (22) are substantially perpendicular to each other, and the pole socket connection hole (23) and the internal device communication hole (22) are substantially coaxially connected. Set up.

The external device communication hole (21) can be inserted into the first coupling interface (31) of an external device (30), and the internal device communication hole (22) can be inserted into the second coupling interface (41) of an internal device (40), The pole base coupling hole (23) can be used for locking and fixing the overlap coupling pole base (10). In a preferred embodiment of the present invention, the overlap coupling pole base (10) at least includes an upper nut (11), a Support the insulating column (12), the lower nut (14) and a spring (13).

More preferably, in this embodiment, a pressure gap rubber ring (15) may be provided between the upper nut (11) and the lower nut (12). The pressure gap rubber ring (15) can be used to reduce the upper The contact pressure between the nut (11) and the lower nut (12).

More preferably, in this embodiment, the outer diameter of the lower nut (12) can be provided with a waterproof rubber ring (16), and the waterproof rubber ring (16) is located in the connecting hole of the lower nut (12) and the pole base of the housing (23), can prevent moisture and water from entering the inside of the casing (20).

Please refer to Figures 2 and 3. Figure 2 shows an exploded perspective view of the lap coupling pole holder of the first embodiment of the lap coupling pole holder in the casing of the present invention, and FIG. 3 shows the lap coupling pole in the casing of the present invention An enlarged perspective view of the nut and the supporting insulating column above the seat. In this embodiment, the upper nut (11) has a through hole (not labeled), and the supporting insulating column (12) is provided in the through hole of the upper nut (11) and can be inserted in the through hole. Axial sliding.

More preferably, the through hole of the upper nut (11) forms a square hole (112), and the support insulating column (12) forms a square column (122) on the outside, and the square column (122) is slidably accommodated in The square hole (112) enables the supporting insulating column (12) to slide axially in the upper nut (11) without rotating randomly.

More preferably, a section of circular hole (111) may be formed above the square hole (112), and the supporting insulating column (12) forms a section of corresponding cylinder (121) above the square column (122), so that the cylinder (121) is slidably accommodated in the circular hole (111), whereby the circular mechanical cooperation between the circular hole (111) and the cylinder (121) makes the supporting insulating column (12) on the upper nut (11) It has better axial sliding properties.

A groove (123) is provided on the top of the supporting insulating column (12). There can be only a single groove (123) on the top of the supporting insulating column (12), or two grooves (123) arranged in a cross as shown in the figure. The increase in the number of grooves (123) makes it more convenient Align the correct angle. For example, in this embodiment, two grooves (123) arranged in a cross are arranged. As long as the rotation does not exceed ninety degrees, the angle to be aligned can be aligned.

The groove (123) corresponds to the direction of the square column (122) so that it can be rotated to the correct angle.

The groove (123) can form a circular concave arc shape as shown in the figure, and the groove (123) can also form a V-shaped recess, which can increase the contact area with the first coupling interface (31) to ensure reliable pressing The first coupling interface (31) provides proper pressure to the first coupling interface (31).

In this embodiment, the top of the upper nut (11) can also be provided with a notch (113), the notch (113) corresponds to the direction of the square hole (112), so that the notch (113) and the supporting insulating column (12) The direction of the grooves (123) is the same, and the upper nut (11) can be easily rotated to the correct angle by setting the gap (113), so that the groove (123) supporting the insulating column (12) can be aligned The direction of the first coupling interface (31).

The top of the upper nut (11) can only be provided with a single notch (113), or a two-directional notch (113) arranged in a cross as shown in the figure. The increase in the number of notches (113) makes it easier to align The right angle. The notch (113) can help the groove (123) supporting the insulating column (12) to align with the angle, but the notch (113) on the top of the upper nut (11) is not necessary.

In this embodiment, the lower nut (14) can also be provided with a lower nut containing chamber (141), a spring (13) is provided in the lower nut containing chamber (141), and the spring (13) can push the The supporting insulating column (12) faces the upper nut (11), so that the groove (123) constantly applies elastic pressure to the first coupling interface (31) of the external device (30).

In this embodiment, the bottom of the supporting insulating column (12) can be recessed with an insulating column chamber (124), and the top of the spring (13) extends into the insulating column chamber (124), so that the spring (13) Better positioning effect can be obtained.

The outer diameters of the upper nut (11) and the lower nut (14) are both provided with threaded pole base coupling holes (23) which can be screwed and fixed on the casing (20).

Please refer to FIG. 4, which shows a cross-sectional view of the first embodiment of the lap coupling pole holder in the casing of the present invention before being assembled. In this embodiment, the first coupling interface (31) of an external device (30) is electrically coupled to the second coupling interface (41) of an internal device (40) inside the casing (20), preferably The steps are described as follows:

Install and fix the second coupling interface (41) of the internal device (40) in the internal device communication hole ((22)) of the casing (20), so that the second coupling interface (41) is roughly located in the external device communication hole (21), The intersection of the three holes such as the internal device communicating hole (22) and the pole seat coupling hole (23).

The second coupling interface (41) is a wafer-shaped electrode in this embodiment, but it is not limited to this.

The upper nut (11) can be pre-locked in the pole base combination hole (23), and the angle of the upper nut (11) can be adjusted so that the supporting insulating column (12) can be connected through the square column (122) and The square hole (112) is guided so that the direction of the groove (123) is consistent with the direction of the first coupling interface (31) of the external device (30).

Insert the first coupling interface (31) of the external device (30) through the external device communication hole (21) and make the first coupling interface (31) close to the second coupling interface (41).

The first coupling interface (31) is a cylindrical electrode in this embodiment, but it is not limited to this.

The supporting insulating column (12), the spring (13) and the lower nut (14) are sequentially placed in the pole base coupling hole (23), and the first coupling interface (31) is accommodated in the groove of the supporting insulating column (12) In (123), the elastic pressure exerted by the spring (13) on the supporting insulating column (12) makes the first coupling interface (31) and the second coupling interface (41) close.

The above steps are reference implementations. It can be understood that the above steps can be adjusted. For example, the first coupling interface (31) of the external device (30) can be inserted and fixed through the external device communication hole (21) during implementation. Then insert the second coupling interface (41) of the internal device (40) from the internal device communication hole (22) of the casing (20) so that the second coupling interface (41) and the first coupling interface (31) overlap, Finally, the overlap coupling pole base (10) is locked in, so that the supporting insulating column (12) presses the second coupling interface (41) and the first coupling interface (31) to tightly overlap.

Please refer to FIG. 5. FIG. 5 shows a cross-sectional view of the first embodiment of the overlap coupling pole holder in the casing of the present invention after being assembled. The first coupling interface (31) in the casing (20) is supported by the groove (123) on the top of the supporting insulating column (12) in the overlapping coupling pole base (10), and is continuously aligned by the spring (13) The contact position of a coupling interface (31) and the second coupling interface (41) provides elastic pressure. When the entire device is affected by temperature changes and causes thermal expansion and contraction, the spring (13) provides the first coupling interface (31) ) And the second coupling interface (41) have a pressure-compensating elastic force, so that the interface of the contact device can still maintain a constant contact pressure when the temperature changes.

In this embodiment, the pressure gap rubber ring (15) provided between the upper nut (11) and the lower nut (14) can reduce the difference between the upper nut (11) and the lower nut (14). Contact pressure, when the lower nut (14) rotates close to the upper nut (11), it is less likely to drive the upper nut (11) to rotate.

In this embodiment, the waterproof rubber ring (16) provided on the outer diameter of the lower nut (14) closes the outer end of the pole base coupling hole (23), which can prevent moisture and water from entering the inside of the casing (20).

Please refer to FIGS. 6 and 7. FIG. 6 shows an exploded perspective view of the overlap coupling pole holder of the second embodiment of the overlap coupling pole holder in the casing of the present invention, and FIG. 7 shows the overlap coupling pole in the casing of the present invention A schematic sectional view of the assembly of the second embodiment of the seat. In this embodiment, most of the components are the same as the previous embodiment. The difference is that a temperature compensation liquid package can be further provided between the bottom of the lower nut chamber (141) and the spring (13). (17) The temperature compensation liquid package (17) can absorb the deformation caused by temperature to maintain the original pressure.

The temperature compensation liquid package (17) is a sac-like structure that wraps the liquid inside and the outer surface layer can be elastically deformed. Under extreme air conditions, such as high temperature, the components at various parts have greater thermal expansion. The expansion and the tension of the spring (13) may exert excessive pressure on the first coupling interface (31) and the second coupling interface (41), which may cause metal deformation and reduce the temperature to form a larger gap. At this high temperature The temperature compensation liquid package (17) can provide a space for the spring (13) to retract downward, and can reduce the pressure exerted by the spring (13) on the first coupling interface (31) and the second coupling interface (41).

In this embodiment, a flat washer (18) may be provided between the spring (13) and the temperature compensation liquid package (17). The flat washer (18) is placed at the bottom of the spring (13) to enable the spring (13) It has good supportability to withstand the supporting insulating column (12).

In this embodiment, the thermal expansion coefficient of the temperature-compensated liquid package (17) can be a negative value, so that the temperature-compensated liquid package (17) expands at low temperatures to compensate for the shrinkage distance of other materials, and when the temperature rises The volume is reduced to maintain the original pressure of the device, so that the overlap coupling pole seat in the casing of the present invention can compensate for the thermal expansion and contraction of the object when the high and low temperature changes, so that the coupling interface maintains a constant contact pressure.

The function of the temperature compensation liquid package (17) with negative thermal expansion coefficient is to use the difference between the expansion coefficient of the internal liquid material and the expansion coefficient of the outer capsule material to set the overall temperature compensation liquid package (17) to different expansion coefficients . For example, the thermal expansion coefficient of the capsule material is greater than the thermal expansion coefficient of the liquid material. When the temperature rises, the capsule material expands, but the pressure of the liquid material inside decreases. When the temperature rises, the external squeezing action can actually compress the temperature compensation liquid package (17 )lower the altitude. Conversely, when the temperature decreases, the internal liquid pressure increases, but the temperature compensation liquid package (17) increases in height.

The above-mentioned embodiments are only to illustrate the technical ideas and features of the present invention, and their purpose is to enable those who are familiar with the art to understand the content of the present invention and implement them accordingly. However, the patent scope of the present invention cannot be limited by this. All the equal changes or modifications made in accordance with the spirit of the present invention and the contents of the specification shall be covered by the scope of the patent of the present invention.

10: Lap coupling pole block 11: Upper nut 111: round hole 112: square hole 113: Gap 12: Support insulating column 121: Cylindrical 122: square column 123: Groove 124: Insulated column chamber 13: Spring 14: Lower nut 141: Lower nut chamber 15: Pressure gap rubber ring 16: Waterproof rubber ring 17: Temperature compensation liquid package 18: Flat gasket 20: Chassis 21: Connecting hole of external device 22: Internal device connecting hole 23: Pole base combination hole 30: External device 31: The first coupling interface 40: internal device 41: Second coupling interface

Figure 1 shows an exploded perspective view of the first embodiment of the overlap coupling pole holder in the casing of the present invention. 2 shows an exploded perspective view of the overlap coupling pole holder of the first embodiment of the overlap coupling pole holder in the casing of the present invention. Fig. 3 shows an enlarged perspective view of the nut and the supporting insulating column on the overlap coupling pole seat in the casing of the present invention. 4 shows a schematic cross-sectional view of the first embodiment of the overlap coupling pole holder in the casing of the present invention before being assembled. 5 shows a schematic cross-sectional view of the first embodiment of the overlap coupling pole holder in the casing of the present invention after being assembled. FIG. 6 shows an exploded perspective view of the overlap coupling pole holder of the second embodiment of the overlap coupling pole holder in the casing of the present invention. FIG. 7 shows a schematic cross-sectional view of the second embodiment of the overlap coupling pole holder in the casing of the present invention.

10: Lap coupling pole block

11: Upper nut

12: Support insulating column

13: Spring

14: Lower nut

15: Pressure gap rubber ring

16: Waterproof rubber ring

20: Chassis

21: Connecting hole of external device

22: Internal device connecting hole

23: Pole base combination hole

30: External device

31: The first coupling interface

40: internal device

41: Second coupling interface

Claims (9)

A lap coupling pole seat in a casing, comprising: an upper nut (11), the upper nut (11) has a through hole; a supporting insulating column (12), arranged on the upper nut (11) Sliding in the through hole, the top of the supporting insulating column (12) is provided with a groove (123); a lower nut (14), the lower nut (14) is provided with a lower nut chamber (141); and a spring (13), set in the lower nut chamber (141), the spring (13) pushes the support insulating column (12) toward the upper nut (11), so that the groove (123) is constantly directed to an outside A first coupling interface (31) of the device (30) applies elastic pressure; wherein the through hole of the upper nut (11) forms a square hole (112), and the support insulating column (12) forms a square column ( 122), the square column (122) is slidably received in the square hole (112). For the lap coupling pole seat in the casing as described in item 1 of the scope of patent application, a circular hole (111) is formed above the square hole (112), and the square pillar ( A cylinder (121) is formed above the 122), and the cylinder (121) is slidably received in the circular hole (111). A lap coupling pole seat in a casing, comprising: an upper nut (11), the upper nut (11) has a through hole; a supporting insulating column (12), arranged on the upper nut (11) Sliding in the through hole, the top of the supporting insulating column (12) is provided with a groove (123); a lower nut (14), the lower nut (14) is provided with a lower nut chamber (141); and a spring (13), set in the lower nut chamber (141), the spring (13) pushes the support insulating column (12) toward the upper nut (11), so that the groove (123) is constantly directed to an outside A first coupling interface (31) of the device (30) applies elastic pressure; Wherein, the top of the upper nut (11) is provided with a notch (113), and the notch (113) has the same direction as the groove (123) of the supporting insulating column (12). A lap coupling pole seat in a casing, comprising: an upper nut (11), the upper nut (11) has a through hole; a supporting insulating column (12), arranged on the upper nut (11) Sliding in the through hole, the top of the supporting insulating column (12) is provided with a groove (123); a lower nut (14), the lower nut (14) is provided with a lower nut chamber (141); and a spring (13), set in the lower nut chamber (141), the spring (13) pushes the support insulating column (12) toward the upper nut (11), so that the groove (123) is constantly directed to an outside A first coupling interface (31) of the device (30) applies elastic pressure; wherein, a temperature compensation liquid package (17) is arranged between the bottom of the lower nut chamber (141) and the spring (13). As described in item 4 of the scope of patent application, the lap coupling pole seat in the casing, wherein the thermal expansion coefficient of the temperature compensation liquid package (17) is a negative value. As described in item 4 of the scope of patent application, the lap coupling pole seat in the casing, wherein a flat gasket (18) is provided between the spring (13) and the temperature compensation liquid package (17). For example, the lap coupling pole seat in the casing described in the first item of the scope of patent application, wherein the bottom of the supporting insulating column (12) is recessed with an insulating column containing chamber (124), and the top of the spring (13) extends into the Insulated column chamber (124). For example, the overlap coupling pole seat in the casing as described in any one of items 1-6 in the scope of patent application, wherein a pressure gap rubber is provided between the upper nut (11) and the lower nut (14) Ring (15). As described in any one of items 1 to 6 of the scope of patent application, the lap coupling pole seat in the casing, wherein the outer diameter of the lower nut (14) is provided with a waterproof rubber ring (16).

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